Support and release means for bobbin receivers



Nov. 19, 1946. e. c. BEATRICE SUPPORT AND RELEASE MEANS FOR BOBBINRECEIVERS Filed Dec. 22, 1945 2 Sheets-Sheet l FIE. E

.INVENTOR GABRIEL 6. BE A TIP/GE ATTORNEY Nov. 19, 1946. G. c. BEATRICESUPPORT AND RELEASE MEANS FOR BOBBIN RECEIVERS Filed Dec. 22, 1945 2Sheets-Sheet 2 INVENTOR GABRIEL 6. BEATRICE J FL L I ATTU'RNEY PatentedNov. 19, 1946 SUPPORT AND RELEASE MEANS FOR BOBBIN RECEIVERS Gabriel 0.Beatrice, Shrewsbury, Mass, assignor to Crompton & Knowles Loom Works,Worcester, Mass; a corporation of Massachusetts Application December 22,1945, serial No. 636,948

7 Claims. (Cl. 139-255) This invention relates to weft replenishinglooms and it is the general object of the invention to provide a spentbobbin receiver removable from its normal position by a downward motion.

Weft replenishing looms discharge depleted or spent bobbins downwardlyalong a bobbin chute which traverses a given back and forth path as thelay reciprocates. The bobbin receiving mouth of the bobbin receiverordinaril extends under the forward part of this path so that dischargedbobbins can enter the receiver. The usual bobbin can which rests on thefloor must first be pulled forwardly and then lifted to empty thebobbins in it. The can is free to be raised without first being movedforwardly, and if this should happen the bobbin chute might strike thecan. It is an important object of my present invention to mount a bobbinreceiver in such manner that it must be moved downwardly away from thepath of the chute before it can be mnipulate'd for bobbin emptyingpurposes.

It is another object of my invention to provide a support and receiverunit so formed that upward movement of the unit will establish holdingrelation with the support by a means, such as a spring lock, which willpermit downward bodily detachment of the unit from the support by adownward force directed downwardly onthe unit.

With these and other objects in view as the description proceeds, myinvention resides in the combination and arrangement of partshereinafter described and set forth.

In the accompanying drawings, wherein aconvenient embodiment of myinvention is set forth,

Fig. 1 is a side elevation of the front part of a 100m having my presentinvention applied thereto,

Fig. 2 is a front elevation looking in the direc tion of arrow 2, Fig.1,

Fig. 3 is an enlarged front elevation in the direction of arrow 3,Fig. 1. r

Fig. 4 is a side elevation looking in the direction of arrow 4, Fig. 3;

Fig. 5 is a horizontal section on line 5-5, Fig. 4, and

Fig. 6 is a diagrammatic view similar to Fig. 4

indicating the bobbin receiver unitfbodily dis connected from itssupport.

Referring to Figs. 1 and 2, the loom frame l9 supports a backwardl andforwardly reciprocating lay H provided with a shuttle box I2 for ashuttle S. A bobbin chute I3 secured to the lay extends downwardly andforwardly from the shuttle box and guides the spent or depleted bobbinsas they are discharged from the shuttle during weft replenishingoperations of the loom.

The bobbin chute swings along a back and forth path and bobbins aredischarged when the lay is on front center position, or tothe left asviewed in Fig. 1. g r

The spent bobbins are collected in a receiver designated generally at Rand including a cloth bag B and a frame F to which it is attached. Thebag has a mouth which extends rearwardly of and under the front part ofthe path of the chute so that the discharged bobbins can enter the bag.

A support or supporting unit 2| is secured at 22 to the lower part ofthe loom frame Ill and has it forward end as viewed from the front ofthe loom formed with a head 23 shown in Figs. 3 and 4.. As shown in Fig.5a verticall extending slot 24 has its inner side nearest the loomformed by a wall 25;of head 23 and has its outer side partly closed byfront and back flanges 26 and 21, respectively, having reference to thefront of the loom. These flanges are spaced from wall 25 and form withthe latter front and back pockets 28 and 29 respectively. Flanges 26 and2T, and pockets 28 and 29 are inclined downwardly and away from eachother, as shown in Fig. 4, so that slot 24 is wedge shaped and tapersupwardly.

Front wall 30 of head 23 is provided with a spring plunger 3! madesubstantially as shown in Fig. 4. The plunger has a rounded nose 32projecting into front pocket 28 and is hollow to receive a spring 33between the nose and a plate 34 secured as at 35 to front wall 30. Aflange 36 is received by a recess 3'! in wall 30 and limits rearwardmovement of the plunger by the spring. Wall 33 has a bore 38 in whichthe plunger slides, and plate 34 is recessed at 39 to receive flange 36vwhen the latter moves forwardly, or to the left, from the normalposition shown in Fig. 4.

The frame F of the bobbin receiver has inner and outer side members 45and 46, respectively, joined at their lower ends by a cross bar-41. Theupper ends of the side members are bent rearwardly and preferablydownwardly to form arms 48 from which the bag is suspended. A top crossbar 49 joining the sidemembers reinforces them and provides a hand hold.Cords or the like 5!) connect the front part. of the bag to the sidemembers and limit rearward movement of the bag.

In order that the frame F may be mounted on support 2| I provide a foot55 having a curved groove 5e therein to receive parts of side member 45and bottom cross bar 41. These latter parts are secured as by welding tothe foot, and the latter, together with frame F and bag B, forms thebobbin receiver unit R.

Foot "55 has front and back ribs and BI,

respectively, inclined as shown in Fig. 4 to fit the pockets 28 and 29.Front rib 60 has a depression or notch 62 to receive the spring plunger.This notch is so located that the plunger will not enter it until theribs are snugly seated in the pockets.

Under normal conditions theparts are in the positiomshown in "Figs. -1,2 an di l, .the spring plunger "holding the unit R in normal raisedposition with foot 55 fitting closely into the slot I 24 and with thebobbin receiver mouth of bag 13 projecting under the front p'art r ofthe path traversed by the bobbin chute. As successive weft replenishingoperations occur the spent bobbins accumulate in the bag;and;in*time;;reguire emptying.

The attendant will then push downwardly on the frame F withsuificientiorce to :push notch 62 below the spring plunger, thusreleasing the foot 55. The receiver is-then lowered away from the pathof the bobbin chute until the foot is out'of slot 24,afterwhich'thereceiver'R'can be moved outwardly so'that foot 55 will clearhead 23, after which the bag can be inverted to empty the bobbins in it.The bottom and ;top cross'bars of frame F may begrasped bypthe attendantto perform this operation.

To return the receiver unit to normal position foot 55 will be locatedwith'itstribs'under the pockets and then lifted until plunger 3.! isagain'in notch =62, after which'the 'foot willbe snugly =fitted into'slot -24 and the unit *R will again be in normal position.

In orderto facilitate entry of .the'foot 5.5 into slot 24 the head 2-3is preferably p v w a guide "fin T9 dependingfrom the rear. flange 21and extending outwardlyiromit, see Figs. 4 and- 5. Also, aguide"apron'll ,aligned with wall surface 25 may hang down from head *23 andextend upwardly and forwardly from guide "ill to wall '39,.

From the foregoing it will be seen that .Ijhave provided-a mounting forthe'bobbin receivenunit Rgso constructed thatthe latter .mustbe moveddownwardly from thepathtraversedby the chute before it can be detached"from the ,supp.ort 1|. The wedge shape of the foot 55 and the slotwhichit-fits prevents the receiver unit from being disconnected from thesupport by an upward motion. Thespring-plunger is strong enough tosupport" the receiver ;unit when it .is ,full of bobbins, but can bemeadilyovercome by ajlforce directed downwardly on unit R.

Having-thus describedmyinvention it will be seen that changes andmodifications ,may .be made-thereinby those skilled in the art withoutdepartingfromthe-spirit and scope of .the invention and I do not wish tobe limitedto the ,details herein disclosed, 'butwhat I claim is:.

"1. In a weft replenishing loom from which. depleted bobbins aredischarged, .2. support having -a downwardly opening slot therein, abobbin receiver-unit'having a'footformed to enter said slot Joy "upwardmotion thereinto, and [means normally operative to hold ;said*foo t "in.saidslot to hold Said. unit in normal position and, responsive ,toJadownward forceto effect disengagement of saidgfoot, downwardly fromsaidsupport. -111 a weft epleni hin .loom from whi h bobbins aredischarged downwardlyalong-a chute 4 ing a downwardly opening slottherein, a bobbin receiver unit having a mouth extending under said pathwhen said unit is in normal position, a foot on said unit formedto entersaid slot by upward motion thereinto, and means normally holding saidfoot in said slot to maintain the unit in normal position, .said meansbeing responsive 1130 a downward force ito idisconnect said foot fromsaid support and permit motion .of said unit downwardly from said path.

3. In a weft replenishing loom from which bobbins aredischargeddownwardly along a chute which 'itraverses a given back andforth path, a

' supporting unit mounted on the loom, a bobbin meceiver .unit;having abobbin receiving mouth,

and .cOnneQtiQnsbetWeen said units holding said receiver unit with'saidmouth extending under part of-saidpath, said units being so constructedaslto prevent separation thereof by upward motion of the receiver unit,but permit separation thereof by downwardmotion of .the receiver. .unit.4.1In a weft replenishing loom irom 'which bobbins are dischargeddownwardly alongachute which traverses a given back .and .rorm am, abobbin receiver unit havingafbdbbin receiving mouth, andsupportmeans'for said uniticonstructed to hold said tunit normally with,the mouth thereof extending under partofsaid path, said support meansandunit having cooperative parts which permit downward .motionof the.receiver .unit .but prevent lupward..motion thereof relatively to thesupporhmeans.

5. Ina weft replenishing *loom from which depleted bobbins aredischarged,.a.receiver unit for the discharged bobbins,.a.footsrnemberiorming part of said unit, a support member .for saidfoot member, said members havingrcomplementaryparts .caused tofittogetherbyuptward movement of the foot member .relatively to thesupport -member, and yielding-means on .one of said members normallycooperating avith :the-other member ,to hold said members"togetherwithtsaid receiver, unit in normal p.osition,..said; means beingyieldable to a downwardlyrdirected force -to-disconnectsaid members.

6. .In a weft replenishing loom from which depleted bobbinsare-discharged, -arecei-ver .unit for the discharged bobbins, afootmember forming part of said unit, .a support --member for: said footmember, .saidmembers having complementaryparts caused .to fit-togethertry-upward movement of the foot member .relativelyto the support member,.and -a spring plunger on one "of said -members normally cooperatingwith "the other member to hold. said memberstogether with said receiver.unit in bobbin receiving position, said spring ,plunger beingyieldableto :asdownwardly directed force to efiectsdisconnectionmf saidmembers. a

7. In a weft replenishing loom :from which depleted bobbinsare-discharged, a receiver unit for the discharged bobbins having anupwardly tapering foot, a support .having .an upwardly tapering openingtherein receiving said foot, and

resilientmeans normally holding said foot in said opening with said unitinbobbin ,vreceivinggpositon and yieldable to a:downward.iorce exertedthrough .said v,i oot to :effect rbodily separation of said footand.unitdownwardly ,from saidsup- 1 port.

"GABR'EhQ-BEATRICE.

